行业组件数据 · 2026

螺母/滚珠螺母

A precision nut that converts rotary motion to linear motion in ball screw assemblies.

技术定义与适配语境
典型 螺母/滚珠螺母 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

A ball nut is a critical component in ball screw drive systems that contains recirculating ball bearings within its helical groove. It mates with a ball screw shaft to provide smooth, efficient, and precise linear motion conversion with minimal friction. The internal ball circuit allows continuous rolling contact between the nut and screw, enabling high load capacity, accuracy, and repeatability in industrial applications.

组件规格

定义
A ball nut is a critical component in ball screw drive systems that contains recirculating ball bearings within its helical groove. It mates with a ball screw shaft to provide smooth, efficient, and precise linear motion conversion with minimal friction. The internal ball circuit allows continuous rolling contact between the nut and screw, enabling high load capacity, accuracy, and repeatability in industrial applications.
工作原理
The ball nut operates on the principle of recirculating ball bearings. As the ball screw rotates, the balls roll along the helical grooves between the screw and nut, transferring motion. The balls exit the load zone, travel through a return tube or deflector, and re-enter the circuit, creating continuous rolling contact that minimizes sliding friction and wear.
材料
Typically made from case-hardened alloy steel (e.g.AISI 86204140) or stainless steel (e.g.440C304). Surface hardness: 58-62 HRC. May include polymer seals or wipers.
Ball Circuits
Single, double, or multiple circuits
Lead Accuracy
C3 to C7 grades (ISO 3408)
Preload Types
Double nut, offset preload, oversized balls
Return System
External tube, internal deflector, end cap
Mounting Configurations
Flanged, cylindrical, square
标准
ISO 3408DIN 69051JIS B1192

行业分类与别名

螺母/滚珠螺母 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Insufficient lubrication or contamination->Increased friction, overheating, and premature wear->Implement regular lubrication schedules and use protective seals
Excessive axial or radial loads->Ball deformation, groove damage, or nut cracking->Adhere to load ratings, use proper mounting, and consider shock absorbers

工业生态与工程逻辑

0
Backlash development due to wear
1
Contamination leading to ball jamming
2
Improper preload causing reduced accuracy
3
Overloading beyond rated capacity

合规与检测

tolerance
Lead accuracy per ISO 3408 grades (e.g., ±0.023mm/300mm for C5)
test method
Dynamic load testing, running torque measurement, backlash inspection per manufacturer specifications

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制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between a ball nut and a standard nut?

A ball nut contains recirculating ball bearings that roll between the nut and screw, reducing friction and enabling precise motion. A standard nut relies on sliding contact, which creates more friction and wear.

How do you maintain a ball nut?

Regular lubrication with appropriate grease or oil, periodic cleaning to remove contaminants, and monitoring for backlash or unusual noise. Follow manufacturer guidelines for specific maintenance intervals.

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CNFX Industrial Component Index · 机械和设备制造

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初步技术归类
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URN:CNFX:ME:UNIT:NUT_BALL_NUT